Oracle is still making a very, very healthy amount of money on legacy db products. Momentum is a very powerful thing.
They're a hypercloud provider now. It may be awhile.
Ehhhhhh maybe https://www.cnbc.com/quotes/ORCL
As much as I'd like to believe this, they have their ways of making money.
They bought Cerner early in the decade and have whittled it down to absolutely nothing. This is a problem when the software that Cerner sold was EMRs and I have people who used to work there telling me that the perioperative and anesthesia suites now have one person working on them, and no one's fixing issues.
Oracle has understood this for a long time. RDMBS have seen many generations of application tech stacks rise and fall. Other than C and unix they have outlasted almost everything.